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<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Copyright 2001-2004 The Apache Software Foundation.<a name="line.2"></a>
<span class="sourceLineNo">003</span> *<a name="line.3"></a>
<span class="sourceLineNo">004</span> * Licensed under the Apache License, Version 2.0 (the "License");<a name="line.4"></a>
<span class="sourceLineNo">005</span> * you may not use this file except in compliance with the License.<a name="line.5"></a>
<span class="sourceLineNo">006</span> * You may obtain a copy of the License at<a name="line.6"></a>
<span class="sourceLineNo">007</span> *<a name="line.7"></a>
<span class="sourceLineNo">008</span> *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.8"></a>
<span class="sourceLineNo">009</span> *<a name="line.9"></a>
<span class="sourceLineNo">010</span> * Unless required by applicable law or agreed to in writing, software<a name="line.10"></a>
<span class="sourceLineNo">011</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.11"></a>
<span class="sourceLineNo">012</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.12"></a>
<span class="sourceLineNo">013</span> * See the License for the specific language governing permissions and<a name="line.13"></a>
<span class="sourceLineNo">014</span> * limitations under the License.<a name="line.14"></a>
<span class="sourceLineNo">015</span> */<a name="line.15"></a>
<span class="sourceLineNo">016</span><a name="line.16"></a>
<span class="sourceLineNo">017</span>// Contributors:  Kitching Simon &lt;Simon.Kitching@orange.ch&gt;<a name="line.17"></a>
<span class="sourceLineNo">018</span>//                Nicholas Wolff<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>package org.apache.log4j;<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.io.ObjectInputStream;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.io.ObjectOutputStream;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import java.io.ObjectStreamException;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import java.io.Serializable;<a name="line.26"></a>
<span class="sourceLineNo">027</span><a name="line.27"></a>
<span class="sourceLineNo">028</span>/**<a name="line.28"></a>
<span class="sourceLineNo">029</span>   Defines the minimum set of levels recognized by the system, that is<a name="line.29"></a>
<span class="sourceLineNo">030</span>   &lt;code&gt;OFF&lt;/code&gt;, &lt;code&gt;FATAL&lt;/code&gt;, &lt;code&gt;ERROR&lt;/code&gt;,<a name="line.30"></a>
<span class="sourceLineNo">031</span>   &lt;code&gt;WARN&lt;/code&gt;, &lt;code&gt;INFO&lt;/code&gt;, &lt;code&gt;DEBUG&lt;/code&gt; and<a name="line.31"></a>
<span class="sourceLineNo">032</span>   &lt;code&gt;ALL&lt;/code&gt;.<a name="line.32"></a>
<span class="sourceLineNo">033</span><a name="line.33"></a>
<span class="sourceLineNo">034</span>   &lt;p&gt;The &lt;code&gt;Level&lt;/code&gt; class may be subclassed to define a larger<a name="line.34"></a>
<span class="sourceLineNo">035</span>   level set.<a name="line.35"></a>
<span class="sourceLineNo">036</span><a name="line.36"></a>
<span class="sourceLineNo">037</span>   @author Ceki G&amp;uuml;lc&amp;uuml;<a name="line.37"></a>
<span class="sourceLineNo">038</span><a name="line.38"></a>
<span class="sourceLineNo">039</span> */<a name="line.39"></a>
<span class="sourceLineNo">040</span>public class Level extends Priority implements Serializable {<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span>    /**<a name="line.42"></a>
<span class="sourceLineNo">043</span>     * TRACE level integer value.<a name="line.43"></a>
<span class="sourceLineNo">044</span>     * @since 1.2.12<a name="line.44"></a>
<span class="sourceLineNo">045</span>     */<a name="line.45"></a>
<span class="sourceLineNo">046</span>    public static final int TRACE_INT = 5000;<a name="line.46"></a>
<span class="sourceLineNo">047</span><a name="line.47"></a>
<span class="sourceLineNo">048</span>    // match jboss' xlevel<a name="line.48"></a>
<span class="sourceLineNo">049</span>    public static final int X_TRACE_INT = DEBUG_INT - 100;<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span>    /**<a name="line.51"></a>
<span class="sourceLineNo">052</span>       The &lt;code&gt;OFF&lt;/code&gt; has the highest possible rank and is<a name="line.52"></a>
<span class="sourceLineNo">053</span>       intended to turn off logging.  */<a name="line.53"></a>
<span class="sourceLineNo">054</span>    final static public Level OFF = new Level(OFF_INT, "OFF", 0);<a name="line.54"></a>
<span class="sourceLineNo">055</span><a name="line.55"></a>
<span class="sourceLineNo">056</span>    /**<a name="line.56"></a>
<span class="sourceLineNo">057</span>       The &lt;code&gt;FATAL&lt;/code&gt; level designates very severe error<a name="line.57"></a>
<span class="sourceLineNo">058</span>       events that will presumably lead the application to abort.<a name="line.58"></a>
<span class="sourceLineNo">059</span>     */<a name="line.59"></a>
<span class="sourceLineNo">060</span>    final static public Level FATAL = new Level(FATAL_INT, "FATAL", 0);<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span>    /**<a name="line.62"></a>
<span class="sourceLineNo">063</span>       The &lt;code&gt;ERROR&lt;/code&gt; level designates error events that<a name="line.63"></a>
<span class="sourceLineNo">064</span>       might still allow the application to continue running.  */<a name="line.64"></a>
<span class="sourceLineNo">065</span>    final static public Level ERROR = new Level(ERROR_INT, "ERROR", 3);<a name="line.65"></a>
<span class="sourceLineNo">066</span><a name="line.66"></a>
<span class="sourceLineNo">067</span>    /**<a name="line.67"></a>
<span class="sourceLineNo">068</span>       The &lt;code&gt;WARN&lt;/code&gt; level designates potentially harmful situations.<a name="line.68"></a>
<span class="sourceLineNo">069</span>    */<a name="line.69"></a>
<span class="sourceLineNo">070</span>    final static public Level WARN = new Level(WARN_INT, "WARN", 4);<a name="line.70"></a>
<span class="sourceLineNo">071</span><a name="line.71"></a>
<span class="sourceLineNo">072</span>    /**<a name="line.72"></a>
<span class="sourceLineNo">073</span>       The &lt;code&gt;INFO&lt;/code&gt; level designates informational messages<a name="line.73"></a>
<span class="sourceLineNo">074</span>       that highlight the progress of the application at coarse-grained<a name="line.74"></a>
<span class="sourceLineNo">075</span>       level.  */<a name="line.75"></a>
<span class="sourceLineNo">076</span>    final static public Level INFO = new Level(INFO_INT, "INFO", 6);<a name="line.76"></a>
<span class="sourceLineNo">077</span><a name="line.77"></a>
<span class="sourceLineNo">078</span>    /**<a name="line.78"></a>
<span class="sourceLineNo">079</span>       The &lt;code&gt;DEBUG&lt;/code&gt; Level designates fine-grained<a name="line.79"></a>
<span class="sourceLineNo">080</span>       informational events that are most useful to debug an<a name="line.80"></a>
<span class="sourceLineNo">081</span>       application.  */<a name="line.81"></a>
<span class="sourceLineNo">082</span>    final static public Level DEBUG = new Level(DEBUG_INT, "DEBUG", 7);<a name="line.82"></a>
<span class="sourceLineNo">083</span><a name="line.83"></a>
<span class="sourceLineNo">084</span>    /**<a name="line.84"></a>
<span class="sourceLineNo">085</span>      * The &lt;code&gt;TRACE&lt;/code&gt; Level designates finer-grained<a name="line.85"></a>
<span class="sourceLineNo">086</span>      * informational events than the &lt;code&gt;DEBUG&lt;/code level.<a name="line.86"></a>
<span class="sourceLineNo">087</span>     *  @since 1.2.12<a name="line.87"></a>
<span class="sourceLineNo">088</span>      */<a name="line.88"></a>
<span class="sourceLineNo">089</span>    public static final Level TRACE = new Level(TRACE_INT, "TRACE", 7);<a name="line.89"></a>
<span class="sourceLineNo">090</span><a name="line.90"></a>
<span class="sourceLineNo">091</span>    /**<a name="line.91"></a>
<span class="sourceLineNo">092</span>       The &lt;code&gt;ALL&lt;/code&gt; has the lowest possible rank and is intended to<a name="line.92"></a>
<span class="sourceLineNo">093</span>       turn on all logging.  */<a name="line.93"></a>
<span class="sourceLineNo">094</span>    final static public Level ALL = new Level(ALL_INT, "ALL", 7);<a name="line.94"></a>
<span class="sourceLineNo">095</span><a name="line.95"></a>
<span class="sourceLineNo">096</span>    /**<a name="line.96"></a>
<span class="sourceLineNo">097</span>     * Serialization version id.<a name="line.97"></a>
<span class="sourceLineNo">098</span>     */<a name="line.98"></a>
<span class="sourceLineNo">099</span>    static final long serialVersionUID = 3491141966387921974L;<a name="line.99"></a>
<span class="sourceLineNo">100</span><a name="line.100"></a>
<span class="sourceLineNo">101</span>    /**<a name="line.101"></a>
<span class="sourceLineNo">102</span>       Instantiate a Level object.<a name="line.102"></a>
<span class="sourceLineNo">103</span>     */<a name="line.103"></a>
<span class="sourceLineNo">104</span>    protected Level(int level, String levelStr, int syslogEquivalent) {<a name="line.104"></a>
<span class="sourceLineNo">105</span>        super(level, levelStr, syslogEquivalent);<a name="line.105"></a>
<span class="sourceLineNo">106</span>    }<a name="line.106"></a>
<span class="sourceLineNo">107</span><a name="line.107"></a>
<span class="sourceLineNo">108</span>    /**<a name="line.108"></a>
<span class="sourceLineNo">109</span>       Convert the string passed as argument to a level. If the<a name="line.109"></a>
<span class="sourceLineNo">110</span>       conversion fails, then this method returns {@link #DEBUG}. <a name="line.110"></a>
<span class="sourceLineNo">111</span>    */<a name="line.111"></a>
<span class="sourceLineNo">112</span>    public static Level toLevel(String sArg) {<a name="line.112"></a>
<span class="sourceLineNo">113</span>        return (Level) toLevel(sArg, Level.DEBUG);<a name="line.113"></a>
<span class="sourceLineNo">114</span>    }<a name="line.114"></a>
<span class="sourceLineNo">115</span><a name="line.115"></a>
<span class="sourceLineNo">116</span>    /**<a name="line.116"></a>
<span class="sourceLineNo">117</span>      Convert an integer passed as argument to a level. If the<a name="line.117"></a>
<span class="sourceLineNo">118</span>      conversion fails, then this method returns {@link #DEBUG}.<a name="line.118"></a>
<span class="sourceLineNo">119</span><a name="line.119"></a>
<span class="sourceLineNo">120</span>    */<a name="line.120"></a>
<span class="sourceLineNo">121</span>    public static Level toLevel(int val) {<a name="line.121"></a>
<span class="sourceLineNo">122</span>        return (Level) toLevel(val, Level.DEBUG);<a name="line.122"></a>
<span class="sourceLineNo">123</span>    }<a name="line.123"></a>
<span class="sourceLineNo">124</span><a name="line.124"></a>
<span class="sourceLineNo">125</span>    /**<a name="line.125"></a>
<span class="sourceLineNo">126</span>      Convert an integer passed as argument to a level. If the<a name="line.126"></a>
<span class="sourceLineNo">127</span>      conversion fails, then this method returns the specified default.<a name="line.127"></a>
<span class="sourceLineNo">128</span>    */<a name="line.128"></a>
<span class="sourceLineNo">129</span>    public static Level toLevel(int val, Level defaultLevel) {<a name="line.129"></a>
<span class="sourceLineNo">130</span>        switch (val) {<a name="line.130"></a>
<span class="sourceLineNo">131</span>        case ALL_INT:<a name="line.131"></a>
<span class="sourceLineNo">132</span>            return ALL;<a name="line.132"></a>
<span class="sourceLineNo">133</span>        case DEBUG_INT:<a name="line.133"></a>
<span class="sourceLineNo">134</span>            return Level.DEBUG;<a name="line.134"></a>
<span class="sourceLineNo">135</span>        case INFO_INT:<a name="line.135"></a>
<span class="sourceLineNo">136</span>            return Level.INFO;<a name="line.136"></a>
<span class="sourceLineNo">137</span>        case WARN_INT:<a name="line.137"></a>
<span class="sourceLineNo">138</span>            return Level.WARN;<a name="line.138"></a>
<span class="sourceLineNo">139</span>        case ERROR_INT:<a name="line.139"></a>
<span class="sourceLineNo">140</span>            return Level.ERROR;<a name="line.140"></a>
<span class="sourceLineNo">141</span>        case FATAL_INT:<a name="line.141"></a>
<span class="sourceLineNo">142</span>            return Level.FATAL;<a name="line.142"></a>
<span class="sourceLineNo">143</span>        case OFF_INT:<a name="line.143"></a>
<span class="sourceLineNo">144</span>            return OFF;<a name="line.144"></a>
<span class="sourceLineNo">145</span>        case TRACE_INT:<a name="line.145"></a>
<span class="sourceLineNo">146</span>            return Level.TRACE;<a name="line.146"></a>
<span class="sourceLineNo">147</span>        default:<a name="line.147"></a>
<span class="sourceLineNo">148</span>            return defaultLevel;<a name="line.148"></a>
<span class="sourceLineNo">149</span>        }<a name="line.149"></a>
<span class="sourceLineNo">150</span>    }<a name="line.150"></a>
<span class="sourceLineNo">151</span><a name="line.151"></a>
<span class="sourceLineNo">152</span>    /**<a name="line.152"></a>
<span class="sourceLineNo">153</span>       Convert the string passed as argument to a level. If the<a name="line.153"></a>
<span class="sourceLineNo">154</span>       conversion fails, then this method returns the value of<a name="line.154"></a>
<span class="sourceLineNo">155</span>       &lt;code&gt;defaultLevel&lt;/code&gt;.  <a name="line.155"></a>
<span class="sourceLineNo">156</span>    */<a name="line.156"></a>
<span class="sourceLineNo">157</span>    public static Level toLevel(String sArg, Level defaultLevel) {<a name="line.157"></a>
<span class="sourceLineNo">158</span>        if (sArg == null)<a name="line.158"></a>
<span class="sourceLineNo">159</span>            return defaultLevel;<a name="line.159"></a>
<span class="sourceLineNo">160</span><a name="line.160"></a>
<span class="sourceLineNo">161</span>        String s = sArg.toUpperCase();<a name="line.161"></a>
<span class="sourceLineNo">162</span><a name="line.162"></a>
<span class="sourceLineNo">163</span>        if (s.equals("ALL"))<a name="line.163"></a>
<span class="sourceLineNo">164</span>            return Level.ALL;<a name="line.164"></a>
<span class="sourceLineNo">165</span>        if (s.equals("DEBUG"))<a name="line.165"></a>
<span class="sourceLineNo">166</span>            return Level.DEBUG;<a name="line.166"></a>
<span class="sourceLineNo">167</span>        if (s.equals("INFO"))<a name="line.167"></a>
<span class="sourceLineNo">168</span>            return Level.INFO;<a name="line.168"></a>
<span class="sourceLineNo">169</span>        if (s.equals("WARN"))<a name="line.169"></a>
<span class="sourceLineNo">170</span>            return Level.WARN;<a name="line.170"></a>
<span class="sourceLineNo">171</span>        if (s.equals("ERROR"))<a name="line.171"></a>
<span class="sourceLineNo">172</span>            return Level.ERROR;<a name="line.172"></a>
<span class="sourceLineNo">173</span>        if (s.equals("FATAL"))<a name="line.173"></a>
<span class="sourceLineNo">174</span>            return Level.FATAL;<a name="line.174"></a>
<span class="sourceLineNo">175</span>        if (s.equals("OFF"))<a name="line.175"></a>
<span class="sourceLineNo">176</span>            return Level.OFF;<a name="line.176"></a>
<span class="sourceLineNo">177</span>        if (s.equals("TRACE"))<a name="line.177"></a>
<span class="sourceLineNo">178</span>            return Level.TRACE;<a name="line.178"></a>
<span class="sourceLineNo">179</span>        return defaultLevel;<a name="line.179"></a>
<span class="sourceLineNo">180</span>    }<a name="line.180"></a>
<span class="sourceLineNo">181</span><a name="line.181"></a>
<span class="sourceLineNo">182</span>    /**<a name="line.182"></a>
<span class="sourceLineNo">183</span>     * Custom deserialization of Level.<a name="line.183"></a>
<span class="sourceLineNo">184</span>     * @param s serialization stream.<a name="line.184"></a>
<span class="sourceLineNo">185</span>     * @throws IOException if IO exception.<a name="line.185"></a>
<span class="sourceLineNo">186</span>     * @throws ClassNotFoundException if class not found.<a name="line.186"></a>
<span class="sourceLineNo">187</span>     */<a name="line.187"></a>
<span class="sourceLineNo">188</span>    private void readObject(final ObjectInputStream s) throws IOException, ClassNotFoundException {<a name="line.188"></a>
<span class="sourceLineNo">189</span>        s.defaultReadObject();<a name="line.189"></a>
<span class="sourceLineNo">190</span>        level = s.readInt();<a name="line.190"></a>
<span class="sourceLineNo">191</span>        syslogEquivalent = s.readInt();<a name="line.191"></a>
<span class="sourceLineNo">192</span>        levelStr = s.readUTF();<a name="line.192"></a>
<span class="sourceLineNo">193</span>        if (levelStr == null) {<a name="line.193"></a>
<span class="sourceLineNo">194</span>            levelStr = "";<a name="line.194"></a>
<span class="sourceLineNo">195</span>        }<a name="line.195"></a>
<span class="sourceLineNo">196</span>    }<a name="line.196"></a>
<span class="sourceLineNo">197</span><a name="line.197"></a>
<span class="sourceLineNo">198</span>    /**<a name="line.198"></a>
<span class="sourceLineNo">199</span>     * Serialize level.<a name="line.199"></a>
<span class="sourceLineNo">200</span>     * @param s serialization stream.<a name="line.200"></a>
<span class="sourceLineNo">201</span>     * @throws IOException if exception during serialization.<a name="line.201"></a>
<span class="sourceLineNo">202</span>     */<a name="line.202"></a>
<span class="sourceLineNo">203</span>    private void writeObject(final ObjectOutputStream s) throws IOException {<a name="line.203"></a>
<span class="sourceLineNo">204</span>        s.defaultWriteObject();<a name="line.204"></a>
<span class="sourceLineNo">205</span>        s.writeInt(level);<a name="line.205"></a>
<span class="sourceLineNo">206</span>        s.writeInt(syslogEquivalent);<a name="line.206"></a>
<span class="sourceLineNo">207</span>        s.writeUTF(levelStr);<a name="line.207"></a>
<span class="sourceLineNo">208</span>    }<a name="line.208"></a>
<span class="sourceLineNo">209</span><a name="line.209"></a>
<span class="sourceLineNo">210</span>    /**<a name="line.210"></a>
<span class="sourceLineNo">211</span>     * Resolved deserialized level to one of the stock instances.<a name="line.211"></a>
<span class="sourceLineNo">212</span>     * May be overridden in classes derived from Level.<a name="line.212"></a>
<span class="sourceLineNo">213</span>     * @return resolved object.<a name="line.213"></a>
<span class="sourceLineNo">214</span>     * @throws ObjectStreamException if exception during resolution.<a name="line.214"></a>
<span class="sourceLineNo">215</span>     */<a name="line.215"></a>
<span class="sourceLineNo">216</span>    private Object readResolve() throws ObjectStreamException {<a name="line.216"></a>
<span class="sourceLineNo">217</span>        //<a name="line.217"></a>
<span class="sourceLineNo">218</span>        // if the deserialized object is exactly an instance of Level<a name="line.218"></a>
<span class="sourceLineNo">219</span>        //<a name="line.219"></a>
<span class="sourceLineNo">220</span>        if (getClass() == Level.class) {<a name="line.220"></a>
<span class="sourceLineNo">221</span>            return toLevel(level);<a name="line.221"></a>
<span class="sourceLineNo">222</span>        }<a name="line.222"></a>
<span class="sourceLineNo">223</span>        //<a name="line.223"></a>
<span class="sourceLineNo">224</span>        // extension of Level can't substitute stock item<a name="line.224"></a>
<span class="sourceLineNo">225</span>        //<a name="line.225"></a>
<span class="sourceLineNo">226</span>        return this;<a name="line.226"></a>
<span class="sourceLineNo">227</span>    }<a name="line.227"></a>
<span class="sourceLineNo">228</span>}<a name="line.228"></a>




























































</pre>
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